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US9726826B2 - Inter-lens adjusting method and photoelectric hybrid substrate - Google Patents
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US9726826B2 - Inter-lens adjusting method and photoelectric hybrid substrate - Google Patents

Inter-lens adjusting method and photoelectric hybrid substrate Download PDF

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Publication number
US9726826B2
US9726826B2 US14/975,921 US201514975921A US9726826B2 US 9726826 B2 US9726826 B2 US 9726826B2 US 201514975921 A US201514975921 A US 201514975921A US 9726826 B2 US9726826 B2 US 9726826B2
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Prior art keywords
lens
portions
fitting
light
convex
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US14/975,921
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US20160209596A1 (en
Inventor
Takahiro OOI
Michihiro Takamatsu
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Fujitsu Ltd
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Fujitsu Ltd
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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/26—Optical coupling means
    • G02B6/32—Optical coupling means having lens focusing means positioned between opposed fibre ends
    • G02B6/322—Optical coupling means having lens focusing means positioned between opposed fibre ends and having centering means being part of the lens for the self-positioning of the lightguide at the focal point, e.g. holes, wells, indents, nibs
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/42—Coupling light guides with opto-electronic elements
    • G02B6/4201—Packages, e.g. shape, construction, internal or external details
    • G02B6/4204—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/42—Coupling light guides with opto-electronic elements
    • G02B6/4201—Packages, e.g. shape, construction, internal or external details
    • G02B6/4219—Mechanical fixtures for holding or positioning the elements relative to each other in the couplings; Alignment methods for the elements, e.g. measuring or observing methods especially used therefor
    • G02B6/4228—Passive alignment, i.e. without a detection of the degree of coupling or the position of the elements
    • G02B6/423—Passive alignment, i.e. without a detection of the degree of coupling or the position of the elements using guiding surfaces for the alignment
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/42—Coupling light guides with opto-electronic elements
    • G02B6/4201—Packages, e.g. shape, construction, internal or external details
    • G02B6/4249—Packages, e.g. shape, construction, internal or external details comprising arrays of active devices and fibres
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/42—Coupling light guides with opto-electronic elements
    • G02B6/4292—Coupling light guides with opto-electronic elements the light guide being disconnectable from the opto-electronic element, e.g. mutually self aligning arrangements

Definitions

  • the embodiments discussed herein are related to an inter-lens adjusting method and a photoelectric hybrid substrate.
  • an inter-lens adjusting method includes: fitting a plurality of fitting portions to a plurality of fitted portions, wherein each of the plurality of fitting portions is provided on the side of a first lens for collimating light emitted from a light emitting device and includes at least one of a convex portion and a concave portion and each of the plurality of fitted portions is provided on the side of a second lens for aggregating the light collimated by the first lens and has a shape to be fitted to a corresponding one of the plurality of fitting portions; and adjusting a position between the first lens and the second lens such that the light emitted from the light emitting device is aggregated into an optical fiber ferrule via the first lens and the second lens.
  • FIG. 1 illustrates an example of a photoelectric hybrid substrate
  • FIG. 2 illustrates an example of an optical device and a ferrule
  • FIG. 3A illustrates an example of a perspective view of a lens of an optical device side
  • FIG. 3B illustrates an example of a bottom view of the lens of the optical device side
  • FIG. 3C illustrates an example of a front view of the lens of the optical device side
  • FIG. 3D illustrates an example of a side view of the lens of the optical device side
  • FIG. 4A illustrates an example of a perspective view of a lens of a ferrule side
  • FIG. 4B illustrates an example of a top view of the lens of the ferrule side
  • FIG. 4C illustrates an example of a front view of the lens of the ferrule side
  • FIG. 4D illustrates an example of a side view of the lens of the ferrule side
  • FIG. 5 illustrates an example of adjustment of a space between lenses
  • FIG. 6A illustrates an example of a perspective view of a lens of the optical device side
  • FIG. 6B illustrates an example of a perspective view of a lens of the ferrule side
  • FIG. 7A illustrates an example of a perspective view of a lens of the optical device side
  • FIG. 7B illustrates an example of a perspective view of a lens of the ferrule side
  • FIG. 8A illustrates an example of a perspective view of a lens of the optical device side
  • FIG. 8B illustrates an example of a perspective view of a lens of the ferrule side
  • FIG. 9 illustrates an example of a photoelectric hybrid substrate
  • FIG. 10 illustrates an example of a photoelectric hybrid substrate
  • FIG. 11 illustrates an example of the shape of tips of convex portions of a lens.
  • An alignment jig having a protruding structure and guide pins fitting an alignment guide groove provided on a substrate to which a surface emission device is bonded is used to mount a silicon substrate in a package having guide pin holes.
  • aligned fixed guide pins and guide pin insertion holes to be fitted to the guide pins are used to align an optical module including a lens array with an optical fiber array.
  • an optical device such as a light emitting device or a light receiving device and a ferrule
  • an optical loss between the optical device and the ferrule may increase.
  • FIG. 1 illustrates an example of a photoelectric hybrid substrate.
  • a front view of the photoelectric hybrid substrate is illustrated in FIG. 1 .
  • the photoelectric hybrid substrate 100 includes a plate 101 , a photonic/electric hybrid board 102 , a socket 103 , fins 105 , a micro IC 111 , and a driver IC 112 .
  • the photoelectric hybrid substrate 100 further includes an optical device 113 , lenses 121 and 122 , a ferrule 130 , and an optical fiber 150 .
  • an X-axial direction and a Y-axial direction are each parallel to a mounting surface of the photonic/electric hybrid board 102 and are perpendicular to each other.
  • a Z-axial direction is perpendicular to the mounting surface of the photonic/electric hybrid board 102 .
  • the X axis, Y axis, and Z axis may be the depth direction, horizontal direction, and vertical direction, respectively.
  • the plate 101 may correspond to one side, for example, a bottom surface of a housing of the photoelectric hybrid substrate 100 .
  • the plate 101 may be a heat dissipating member for dissipating heat from the photonic/electric hybrid board 102 .
  • the photonic/electric hybrid board 102 is a mother board on which optical devices and electric circuits are mixedly provided.
  • the photonic/electric hybrid board 102 may be a printed circuit board (PCB).
  • the socket 103 is installed on the mounting surface of the photonic/electric hybrid board 102 in parallel to the XY plane.
  • the socket 103 accommodates, for example, electric circuits and so on.
  • the socket 103 is electrically coupled with other circuits provided on the photonic/electric hybrid board 102 via a bump and an electrical wiring 104 of the photonic/electric hybrid board 102 .
  • the socket 103 may be a land grid array (LGA) socket.
  • the socket 103 holds the micro IC 111 , the driver IC 112 , and the optical device 113 .
  • the fins 105 are heat dissipating fins for dissipating heat from each of electrical circuits provided in the socket 103 .
  • the micro IC 111 is coupled to the photonic/electric hybrid board 102 via the socket 103 .
  • the micro IC 111 may be a control circuit for controlling the driver IC 112 .
  • a digital circuit such as a digital signal processor (DSP) or the like may be used as the micro IC 111 .
  • DSP digital signal processor
  • the driver IC 112 is coupled to the photonic/electric hybrid board 102 via the socket 103 .
  • the driver IC 112 may be a drive circuit for driving the optical device 113 by supplying a drive current to the optical device 113 .
  • the supply of the drive current to the optical device 113 by the driver IC 112 is performed under the control from the micro IC 111 .
  • the optical device 113 is a light emitting device of a surface emission type for oscillating and emitting light in response to the drive current supplied from the driver IC 112 .
  • the optical device 113 is provided to emit the light in the minus ( ⁇ ) direction of the Z axis, for example, toward the photonic/electric hybrid board 102 .
  • the optical device 113 may be a single light emitting element or a light emitting element array in which a plurality of light emitting elements is arrayed in, for example, the X-axial direction.
  • a laser diode such as a vertical cavity surface emitting laser (VCSEL) may be used for the optical device 113 .
  • VCSEL vertical cavity surface emitting laser
  • the lens 121 When the lens 121 is installed in, for example, the socket 103 , the relative position between the lens 121 and the optical device 113 is adjusted. The lens 121 collimates the light emitted from the optical device 113 and emits the collimated light to the lens 122 . When the lens 122 is installed in the ferrule 130 , the relative position between the lens 122 and the ferrule 130 is adjusted. The lens 122 aggregates (condenses) the light, which is emitted from the lens 121 , into a light incident portion of the ferrule 130 .
  • the ferrule 130 may be a connector which is installed at an end portion of the optical fiber 150 and coupled to the photonic/electric hybrid board 102 .
  • the ferrule 130 is inserted in an opening 106 , which is formed in the photonic/electric hybrid board 102 , in the Z-axial direction and is fixed to the photonic/electric hybrid board 102 by means of a spring mechanism 141 and a detent 142 .
  • the ferrule 130 couples the light, which is aggregated by the lens 122 , to the core of the optical fiber 150 . Accordingly, the light emitted from the optical device 113 is transmitted by the optical fiber 150 .
  • the optical device 113 is a single light emitting element, for example, a ferrule of a single core and an optical fiber may be used for the ferrule 130 and the optical fiber 150 .
  • the optical device 113 is a light emitting element array, for example, a ferrule of multiple cores and optical fiber may be used for the ferrule 130 and the optical fiber 150 .
  • FIG. 2 illustrates one example of the optical device and the ferrule.
  • a front view of each of the lenses between the optical device and the ferrule is illustrated in FIG. 2 .
  • the same elements as or similar elements to those illustrated in FIG. 1 are denoted by the same reference numerals and explanation of which may not be repeated.
  • the lens 121 at the side of the optical device 113 includes a body 210 , a lens portion 211 , and convex portions 231 and 232 .
  • the lens portion 211 and the convex portions 231 and 232 may be, for example, a transparent member made of glass, plastic, or the like, which is formed of the same material as the body 210 and is integrally formed with the body 210 .
  • the lens 121 may be formed by molding the transparent member made of glass or plastic.
  • Light 201 may be emitted from the optical device 113 to the lens 121 .
  • the lens portion 211 collimates the light emitted from the optical device 113 and transmitted through the body 210 to emit the collimated light to the lens 122 .
  • Light 202 may be emitted from the lens portion 211 to the lens 122 .
  • the lens portion 211 is provided in the body 210 at the side of the lens 122 , the lens portion 211 may also be provided in the body 210 at the side of the optical device 113 .
  • the convex portions 231 and 232 are provided at the side of the lens 122 of the body 210 and serve as pins for an alignment and gap adjustment.
  • the convex portions 231 and 231 may be a fitting portion to be fitted to the concave portions 261 and 262 of the lens 122 .
  • the convex portions 231 and 232 have a quadrangular pyramid shape projecting toward the lens 122 .
  • the lens 122 at the side of the ferrule 130 includes a body 240 , a lens portion 241 , and the concave portions 261 and 262 .
  • the lens portion 241 and the concave portions 261 and 262 may be, for example, a transparent member made of glass, plastic, or the like, which is formed of the same material as the body 240 and is integrally formed with the body 240 .
  • the lens 122 may be formed by molding the transparent member made of glass or plastic.
  • the lens portion 241 aggregates light, which is emitted from the lens 121 and transmitted through the body 240 , into the light incident portion of the ferrule 130 .
  • Light 203 may be emitted from the lens portion 241 to the ferrule 130 .
  • the lens portion 241 may also be provided in the body 240 at the side of the lens 121 .
  • the concave portions 261 and 262 are holes formed in the body 240 at the side of the lens 121 and may be serving as fitted portions to be fitted to the convex portions 231 and 232 of the lens 121 .
  • the concave portions 261 and 262 are fitted with the convex portions 231 and 232 , respectively.
  • the concave portions 261 and 262 have a shape complementary to the shape of the convex portions 231 and 232 .
  • the concave portions 261 and 262 may have a quadrangular pyramid shape corresponding to the tips of the convex portions 231 and 232 of the lens 121 .
  • the relative position between the lens 121 and the lens 122 is determined.
  • the relative position between the lens 121 and the lens 122 includes relative positions in the Z-axial direction, the Y-axial direction, the X-axial direction, the rotational direction around the Z axis, the rotational direction around the Y axis, and the rotational direction around the X axis.
  • the ferrule 130 is coupled in the Z-axial direction via the opening 106 formed in the photonic/electric hybrid board 102 , so that the light emitted vertically from the optical device 113 of the surface emission type may be able to enter the ferrule 130 even without performing, for example, an optical path conversion that uses a mirror or the like. As a result, for example, an optical loss caused by such use of a mirror or the like may be reduced.
  • the ferrule 130 When the ferrule 130 is connected in the Z-axial direction via the opening 106 formed in the photonic/electric hybrid board 102 , it may be difficult to visually recognize the positional relationship between the lenses 121 and 122 . In contrast, when the tips of the convex portions 231 and 232 of the lens 121 are respectively fitted into the concave portions 261 and 262 of the lens 122 , the relative position between the lenses 121 and 122 is adjusted with a high accuracy. This can also reduce an optical loss between the optical device 113 and the ferrule 130 .
  • the light is collimated between the optical device 113 and the ferrule 130 , thereby allowing a distance between the optical device 113 and the ferrule 130 to be flexibly designed.
  • the lenses 121 and 122 may simply fit with each other.
  • the lenses 121 and 122 may not be bonded to each other.
  • FIG. 3A illustrates an example of a perspective view of the lens of the optical device side.
  • FIG. 3B illustrates one example of a bottom view of the lens of the optical device side.
  • FIG. 3C illustrates an example of a front view of the lens of the optical device side.
  • FIG. 3D illustrates an example of a side view of the lens of the optical device side.
  • the same elements and portions as or similar elements and portions to those illustrated in FIG. 2 are denoted by the same reference numerals and explanation of which may not be repeated.
  • the lens 121 at the side of the optical device 113 includes twelve (12) lens portions 211 to 222 and four (4) convex portions 231 to 234 .
  • the optical device 113 may be, for example, a light emitting element array in which twelve (12) light emitting elements are arrayed.
  • Each of the lens portions 211 to 222 collimates the light emitted from the light emitting element array and emits the collimated light to the lens 122 .
  • the convex portions 231 to 234 are respectively formed near four corners of the surface of the body 210 on which the lens portions 211 to 222 are formed.
  • the lens 121 may include the twelve (12) lens portions 211 to 222 , the number of lens portions of the lens 121 is optional and lens portions corresponding to the number of light emitting elements included in the optical device 113 may be provided.
  • the lens portions of the lens 121 may be arrayed in a row, the arrangement method of the lens portions of the lens 121 is optional and may correspond to an array of light emitting elements included in the optical device 113 .
  • FIG. 4A illustrates an example of a perspective view of the lens of the ferrule side.
  • FIG. 4B illustrates an example of a top view of the lens of the ferrule side.
  • FIG. 4C illustrates an example of a front view of the lens of the ferrule side.
  • FIG. 4D illustrates an example of a side view of the lens of the ferrule side.
  • the same elements and portions as or similar elements and portions to those illustrated in FIG. 2 are denoted by the same reference numerals and explanation of which may not be repeated.
  • the lens 122 at the ferrule 130 side includes twelve (12) lens portions 241 to 252 and four (4) concave portions 261 to 264 .
  • FIG. 4A illustrates a perspective view of the top side of the lens 122 .
  • the lens portions 241 to 252 are formed on the bottom surface of the lens 122 .
  • Each of the lens portions 241 to 252 aggregates light, which is emitted from the lens portions 211 to 222 (see, e.g., FIGS. 3A to 3D ) of the lens 121 , into the light incident portion of the ferrule 130 .
  • the light incident portion of the ferrule 130 may be, for example, an end portion of each of twelve (12) cores of the ferrule 130 .
  • the concave portions 261 to 264 are respectively formed at positions where the concave portions 261 to 264 fit the convex portions 231 to 234 formed on the top surface of the body 210 illustrated in FIGS. 3A to 3D .
  • FIG. 5 illustrates an example of adjustment of a space between the lenses.
  • the same elements and portions as or similar elements and portions to those illustrated in FIG. 2 are denoted by the same reference numerals and explanation of which may not be repeated.
  • a space e.g., distance in the Z-axial direction
  • the body 210 of the lens 121 and the body 240 of the lens 122 may be adjusted to 100 ⁇ m.
  • each of the convex portions for example, each of the convex portions 231 and 232 illustrated in FIG. 5 are designed such that their height is 200 ⁇ m.
  • the height of each convex portion corresponds to a distance between the tip of each convex portion and the surface of the body 210 on which each convex portion is formed.
  • Each of the concave portions for example, each of the concave portions 261 and 262 illustrated in FIG. 5 are designed such that their depth is 100 ⁇ m.
  • the depth of each concave portion corresponds to a distance between the bottom of each concave portion and the surface of the body 240 on which each concave portion is formed.
  • the space (e.g., distance in the Z-axial direction) between the body 210 of the lens 121 and the body 240 of the lens 122 is set to 100 ⁇ m, as illustrated in the right side of FIG. 5 .
  • the distance between a portion transmitting the light of the lens 121 and a portion transmitting the light of the lens 122 is adjusted according to the dimensions of the convex portions 231 and 232 of the lens 121 and the dimensions of the concave portions 261 and 262 of the lens 122 .
  • the dimensions of the convex portions 231 and 232 and the dimensions of the concave portions 261 and 262 may be adjusted with a high accuracy. Therefore, the distance between the portion transmitting the light of the lens 121 and the portion transmitting the light of the lens 122 may also be adjusted with a high accuracy.
  • FIG. 6A illustrates an example of a perspective view of a lens of the optical device side.
  • FIG. 6B illustrates an example of a perspective view of a lens of the ferrule side.
  • the same elements and portions as or similar elements and portions to those illustrated in FIGS. 3A and 4A are denoted by the same reference numerals and explanation of which may not be repeated.
  • the lens 121 at the side of the optical device 113 and the lens 122 at the side of the ferrule 130 may have the shapes illustrated in FIGS. 6A and 6B , respectively.
  • FIGS. 3A to 3D and FIGS. 4A to 4D four (4) convex portions 231 to 234 are formed in the lens 121 .
  • two (2) convex portions 231 and 233 may be formed in the lens 121 .
  • two (2) concave portions 261 and 263 into which the tips of the convex portions 231 and 233 are fitted, respectively, may be formed in the lens 122 .
  • the number of convex portions of the lens 121 and the number of concave portions of the lens 122 are not limited to four (4) or two (2) but may be, for example, three (3) or five (5) or more.
  • the relative position between the lenses 121 and 122 in each direction may be adjusted with a high accuracy.
  • FIG. 7A illustrates an example of a perspective view of a lens of the optical device side.
  • FIG. 7B illustrates an example of a perspective view of a lens of the ferrule side.
  • the same elements and portions as or similar elements and portions to those illustrated in FIGS. 3A and 4A are denoted by the same reference numerals and explanation of which may not be repeated.
  • the lens 121 at the side of the optical device 113 and the lens 122 at the side of the ferrule 130 may have the shapes illustrated in FIGS. 7A and 7B , respectively.
  • quadrangular pyramidal convex portions 231 to 234 are formed in the lens 121 .
  • conical convex portions 231 to 234 may be formed in the lens 121 .
  • conical concave portions 261 to 264 into which the tips of the convex portions 231 to 234 are fitted, respectively, may be formed in the lens 122 .
  • the convex portions of the lens 121 and the concave portions of the lens 122 are not limited to the quadrangular pyramidal or conical shape but may have other shapes such as, for example, triangular pyramid, hemisphere and the like.
  • the convex portions of the lens 121 and the concave portions of the lens 122 may have a shape of cylinder, triangular prism, quadrangular prism or the like.
  • FIG. 8A illustrates an example of a perspective view of a lens of the optical device side.
  • FIG. 8B illustrates an example of a perspective view of a lens of the ferrule side.
  • the same elements and portions as or similar elements and portions as those illustrated in FIGS. 3A and 4A are denoted by the same reference numerals and explanation of which may not be repeated.
  • the lens 121 at the side of the optical device 113 and the lens 122 at the side of the ferrule 130 may have the shapes illustrated in FIGS. 8A and 8B , respectively.
  • the convex portions 231 to 234 are formed in the lens 121 and the concave portions 261 to 264 are formed in the lens 122 .
  • at least some of the convex portions and concave portions may be exchanged between the lenses 121 and 122 .
  • the convex portions 232 and 233 and the concave portions 261 and 264 are formed in the lens 121 and the convex portions 231 and 234 and the concave portions 262 and 263 are formed in the lens 122 .
  • the concave portions 261 to 264 may be formed in the lens 121 and the convex portions 231 to 234 may be formed in the lens 122 .
  • FIGS. 6A to 8B may be combined.
  • two convex portions and two concave portions may be formed as illustrated in FIGS. 6A and 6B
  • the shapes of the convex portions and concave portions may be conical as illustrated in FIGS. 7A and 7B .
  • the shapes of convex portions and concave portions may be conical as illustrated in FIGS. 7A and 7B , and at least some of the convex portions and concave portions may be exchanged between the lenses 121 and 122 , as illustrated in FIGS. 8A and 8B .
  • Each of the convex portions may have substantially the same length (height) in the Z-axial direction or shape or may have different height or shape.
  • the length (depth) in the Z-axial direction or shape of each of the concave portions may be designed such that each of the concave portions is fitted to the corresponding convex portion.
  • FIG. 9 illustrates an example of a photoelectric hybrid substrate.
  • a front view of the photoelectric hybrid substrate is illustrated in FIG. 9 .
  • the same elements and portions as or similar elements and portions to those illustrated in FIG. 1 are denoted by the same reference numerals and explanation of which may not be repeated.
  • the ferrule 130 is connected to the socket 103 of the photonic/electric hybrid board 102 from the Y-axial direction.
  • the ferrule 130 is coupled without providing any opening for the photonic/electric hybrid board 102 .
  • the optical device 113 is disposed to emit the light in the plus (+) direction of the Z axis.
  • a mirror 911 is disposed at a position where the light emitted from the optical device 113 is incident with an incident angle of 45 degrees.
  • the mirror 911 reflects and emits the light, which is emitted from the optical device 113 in the plus (+) direction of the Z axis, in the Y-axial direction.
  • the lens 121 collimates the light emitted from the mirror 911 and emits the collimated light to the lens 122 .
  • FIG. 10 illustrates an example of a photoelectric hybrid substrate.
  • a front view of the photoelectric hybrid substrate is illustrated in FIG. 10 .
  • the same elements and portions as or similar elements and portions to those illustrated in FIG. 1 are denoted by the same reference numerals and explanation of which may not be repeated.
  • the photoelectric hybrid substrate 100 includes an optical device 1001 and a receiver circuit 1002 instead of the optical device 113 and the driver IC 112 illustrated in FIG. 1 .
  • the optical fiber 150 transmits light from the outside of the photoelectric hybrid substrate 100 and emits the light to the ferrule 130 .
  • the ferrule 130 emits the light, which is emitted from the optical fiber 150 , to the lens 122 .
  • the lens 122 collimates the light emitted from the ferrule 130 and emits the collimated light to the lens 121 .
  • the lens 121 aggregates the light, which is emitted from the lens 122 , into a light receiving portion of the optical device 1001 .
  • the optical device 1001 may be a light receiving device which receives the light aggregated by the lens 121 and outputs an electric signal corresponding to the received light to the receiver circuit 1002 .
  • the optical device 1001 may include a single light receiving element or a light receiving element array in which a plurality of light receiving elements is arrayed.
  • a photodiode may be used for the receiver circuit 1002 .
  • the receiver circuit 1002 converts the analog electric signal, which is output from the optical device 1001 , to a digital electric signal, and then outputs the converted signal to the micro IC 111 .
  • the micro IC 111 performs a process based on the digital electric signal output from the receiver circuit 1002 .
  • the lenses 121 and 122 may have the above-described shapes. Therefore, when the fitting portions, for example, the convex portions 231 and 232 of the lens 121 are fitted into the fitted portions, for example, the concave portions 261 and 262 of the lens 122 , respectively, the relative position between the lenses 121 and 122 is adjusted.
  • the ferrule 130 may be coupled to the socket 103 of the photonic/electric hybrid board 102 from the Y-axial direction.
  • FIG. 11 illustrates an example of the shape of tips of convex portions of a lens.
  • a front view of the shape of the tips of the convex portions of the lens is illustrated in FIG. 11 .
  • the same elements and portions as or similar elements and portions to those illustrated in FIG. 2 are denoted by the same reference numerals and explanation of which may not be repeated.
  • the tips 1101 of the convex portions 231 may have a spherical surface. When the lens 121 is fitted to the lens 122 , it may be reduced that the tips 1101 of the convex portions 231 cuts the concave portions 261 or their periphery. Therefore, a damage of the lens 122 or an occurrence of deviation of the relative position between the lenses 121 and 122 may be reduced.
  • the tips of the convex portions 232 illustrated in FIG. 2 and the tips of the convex portions 231 to 234 illustrated in FIGS. 3A to 3D, 6A, 7A and 8A may have the same shape as or similar shape to those of FIG. 11 .
  • the relative position between the lenses 121 and 122 is adjusted.
  • the relative position between the lenses 121 and 122 is precisely adjusted so that the light emitted from the optical device 113 (see, e.g., FIG. 1 ) is aggregated into the ferrule 130 . Therefore, it is possible to reduce an optical loss caused by misalignment or a gap deviation of the lenses 121 and 122 between the optical device 113 and the ferrule 130 .
  • the relative position between the lenses 121 and 122 is precisely adjusted so that the light emitted from the ferrule 130 is aggregated into the optical device 1001 . Therefore, it is possible to reduce an optical loss caused by misalignment or a gap deviation of the lenses 121 and 122 between the ferrule 130 and the optical device 1001 .
  • the optical loss between the optical device and the ferrule may be reduced.
  • electric signals may be converted to optical signals on the printed circuit boards to be propagated through a light waveguide.
  • a light waveguide including an optical path converter for propagating the optical signals is adhered to the front or rear layer of the printed circuit board and disposed.
  • the light emitted from a light emitting device such as VCSEL or the like may be subjected to a 90 degree optical path conversion by means of a mirror and may be then propagated in an optical fiber.
  • a light emitting device such as VCSEL or the like
  • the light emitted from a light emitting device may be subjected to a 90 degree optical path conversion by means of a mirror and may be then propagated in an optical fiber.
  • light power required for photoelectric conversion in a light receiving device becomes larger and an optical loss in an optical path converter becomes larger accordingly.
  • a light receiving unit is decreased to about 20 ⁇ m to 30 ⁇ m in diameter and receives light with high efficiency, an alignment between lenses, for example, between an optical module and an MT ferrule is performed.
  • a certain degree of gap between the lenses is required, which may make it difficult to perform an inter-lens alignment.
  • the ferrule 130 is directly coupled to the optical device 113 via the lenses 121 and 122 , for example, without using a mirror, it is possible to reduce a loss of the optical path converter.
  • the convex portions 231 to 234 of the lens 121 are fitted to the concave portions 261 to 264 of the lens 122 , respectively, the deviation of the relative position between the lenses 121 and 122 is reduced.
  • the relative position on the XY plane between the lenses 121 and 122 or a space between the lenses 121 and 122 may be adjusted to a designed value in order to reduce an optical loss caused by the deviation of the relative position or the space from the designed value.
  • an optical system between the optical device 113 and the ferrule 130 may be adjusted with high accuracy, and a low-loss optical transmission may be accordingly performed between the optical device 113 and the ferrule 130 .

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Couplings Of Light Guides (AREA)
  • Semiconductor Lasers (AREA)
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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10690867B1 (en) * 2019-02-12 2020-06-23 International Business Machines Corporation Optical device with adhesive connection of recess or side protrusion
US10754070B2 (en) 2018-12-05 2020-08-25 International Business Machines Corporation Microlens array assembling process
US10914901B2 (en) * 2017-10-17 2021-02-09 International Business Machines Corporation Lateral mounting of optoelectronic chips on organic substrate
US20220413228A1 (en) * 2021-06-24 2022-12-29 Corning Research & Development Corporation Lensed optical fiber connector with dust insensitive alignment features
US20240369787A1 (en) * 2021-09-14 2024-11-07 Fujikura Ltd. Optical connection structure
US12216313B2 (en) 2022-02-04 2025-02-04 Avago Technologies International Sales Pte. Limited Silicon photonic edge coupled connector via collimation

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6481381B2 (ja) * 2015-01-21 2019-03-13 富士通株式会社 レンズ間調整方法および光電混載基板
JP2018194670A (ja) * 2017-05-17 2018-12-06 コニカミノルタ株式会社 光学素子及び光コネクタ
JP7451315B2 (ja) * 2020-06-15 2024-03-18 住友電気工業株式会社 光コネクタフェルール、光コネクタ、光接続構造、およびレンズアレイの製造方法

Citations (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09243867A (ja) 1996-03-12 1997-09-19 Sumitomo Electric Ind Ltd 多心光モジュール及びその製造方法
JPH1031138A (ja) 1996-07-18 1998-02-03 Nec Corp 光素子のアライメント方法及び光素子モジュール
US6095697A (en) * 1998-03-31 2000-08-01 Honeywell International Inc. Chip-to-interface alignment
US6198864B1 (en) * 1998-11-24 2001-03-06 Agilent Technologies, Inc. Optical wavelength demultiplexer
US6255724B1 (en) * 1996-10-29 2001-07-03 Alcatel Self-centering arrangement of microstructured elements
US20010028506A1 (en) * 2000-04-05 2001-10-11 Hisayoshi Fujimoto Lens array unit and method of forming image
US6373635B1 (en) * 1999-09-03 2002-04-16 Rohm Co., Ltd. Lens array, method of making the same, and lens
US20020064347A1 (en) * 2000-11-29 2002-05-30 Mertz Pierre H. Integrated coupling modules for high-bandwidth fiber-optic systems
US6449099B2 (en) * 2000-03-23 2002-09-10 Rohm Co., Ltd. Lens array and lens array assembly
US20020176172A1 (en) * 2001-05-09 2002-11-28 Hiroyuki Nemoto Resin erecting lens array and method for fabricating the same
US6693748B1 (en) * 1999-03-31 2004-02-17 Rohm Co., Ltd. Lens array unit, method of manufacturing lens array unit, and optical device using the lens array unit
US6870976B2 (en) * 2001-03-13 2005-03-22 Opnext, Inc. Filter based multiplexer/demultiplexer component
US20050185900A1 (en) * 2004-01-22 2005-08-25 Finisar Corporation Integrated optical devices and methods of making same
US6973248B2 (en) * 2002-08-19 2005-12-06 Infineon Technologies Ag Planar optical component, and a coupling device for coupling light between a planar optical component and an optical assembly
US7421160B1 (en) * 2007-04-10 2008-09-02 International Business Machines Corporation Coupling element alignment using waveguide fiducials
US7720337B2 (en) * 2007-12-20 2010-05-18 Intel Corporation Wafer based optical interconnect
US7859757B2 (en) * 2006-09-28 2010-12-28 Oki Data Corporation Lens-array, exposure device, image forming apparatus and reading apparatus
US20110222823A1 (en) * 2010-03-12 2011-09-15 Xyratex Technology Limited Optical connector and a method of connecting a user circuit to an optical printed circuit board
US8098437B2 (en) * 2010-06-21 2012-01-17 Avago Technologies Fiber Ip (Singapore) Pte. Ltd. Lens device having protective elements
US8600236B2 (en) * 2008-07-16 2013-12-03 Opticis. Co., Ltd. Optical communication module for optical wavelength division multiplexing
US8714838B2 (en) * 2012-06-15 2014-05-06 Unive Co., Ltd. Optical subassembly for passive alignment and method of aligning the same
US20140199019A1 (en) * 2010-11-25 2014-07-17 Fci Optical Engine
US9014519B2 (en) * 2011-10-14 2015-04-21 Hewlett-Packard Development Company, L.P. Optoelectronic interface
US9081157B2 (en) * 2010-09-20 2015-07-14 Optics Co., Ltd. Apparatus for wavelength-division multiplexing and demultiplexing
US20150323748A1 (en) * 2013-01-31 2015-11-12 Ccs Technology, Inc. Method to manufacture an optoelectronic assembly
US20160209596A1 (en) * 2015-01-21 2016-07-21 Fujitsu Limited Inter-lens adjusting method and photoelectric hybrid substrate
US9429711B2 (en) * 2014-03-26 2016-08-30 International Business Machines Corporation Optical device, optical connector assembly, and optical connecting method

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4271841B2 (ja) * 2000-04-05 2009-06-03 ローム株式会社 レンズアレイユニットおよびこれを備えた光学装置
JP3868780B2 (ja) * 2001-09-28 2007-01-17 日本板硝子株式会社 光書き込みヘッド
JP2007316205A (ja) * 2006-05-24 2007-12-06 Nikon Corp 導波路素子アセンブリ
DE102009055083B4 (de) * 2009-12-21 2013-12-05 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Optischer Schichtstapel und Verfahren zu dessen Herstellung
JP2013052557A (ja) * 2011-09-02 2013-03-21 Seiko Epson Corp アパーチャー部品製造用の金型および金型を用いたアパーチャー部品の製造方法
JP6085215B2 (ja) * 2013-04-19 2017-02-22 株式会社フジクラ 光モジュール
JP2015114431A (ja) * 2013-12-10 2015-06-22 住友電気工業株式会社 光モジュール、光コネクタ及び光学基板

Patent Citations (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09243867A (ja) 1996-03-12 1997-09-19 Sumitomo Electric Ind Ltd 多心光モジュール及びその製造方法
JPH1031138A (ja) 1996-07-18 1998-02-03 Nec Corp 光素子のアライメント方法及び光素子モジュール
US6255724B1 (en) * 1996-10-29 2001-07-03 Alcatel Self-centering arrangement of microstructured elements
US6095697A (en) * 1998-03-31 2000-08-01 Honeywell International Inc. Chip-to-interface alignment
US6198864B1 (en) * 1998-11-24 2001-03-06 Agilent Technologies, Inc. Optical wavelength demultiplexer
US6693748B1 (en) * 1999-03-31 2004-02-17 Rohm Co., Ltd. Lens array unit, method of manufacturing lens array unit, and optical device using the lens array unit
US6373635B1 (en) * 1999-09-03 2002-04-16 Rohm Co., Ltd. Lens array, method of making the same, and lens
US6449099B2 (en) * 2000-03-23 2002-09-10 Rohm Co., Ltd. Lens array and lens array assembly
US6707613B2 (en) * 2000-04-05 2004-03-16 Rohm Co., Ltd. Lens array unit and method of forming image
US20010028506A1 (en) * 2000-04-05 2001-10-11 Hisayoshi Fujimoto Lens array unit and method of forming image
US20020064347A1 (en) * 2000-11-29 2002-05-30 Mertz Pierre H. Integrated coupling modules for high-bandwidth fiber-optic systems
US6493489B2 (en) * 2000-11-29 2002-12-10 Alvesta Corporation Integrated coupling modules for high-bandwidth fiber-optic systems
US6870976B2 (en) * 2001-03-13 2005-03-22 Opnext, Inc. Filter based multiplexer/demultiplexer component
US20020176172A1 (en) * 2001-05-09 2002-11-28 Hiroyuki Nemoto Resin erecting lens array and method for fabricating the same
US6973248B2 (en) * 2002-08-19 2005-12-06 Infineon Technologies Ag Planar optical component, and a coupling device for coupling light between a planar optical component and an optical assembly
US20050185900A1 (en) * 2004-01-22 2005-08-25 Finisar Corporation Integrated optical devices and methods of making same
US7859757B2 (en) * 2006-09-28 2010-12-28 Oki Data Corporation Lens-array, exposure device, image forming apparatus and reading apparatus
US7421160B1 (en) * 2007-04-10 2008-09-02 International Business Machines Corporation Coupling element alignment using waveguide fiducials
US7720337B2 (en) * 2007-12-20 2010-05-18 Intel Corporation Wafer based optical interconnect
US8600236B2 (en) * 2008-07-16 2013-12-03 Opticis. Co., Ltd. Optical communication module for optical wavelength division multiplexing
US20110222823A1 (en) * 2010-03-12 2011-09-15 Xyratex Technology Limited Optical connector and a method of connecting a user circuit to an optical printed circuit board
US8098437B2 (en) * 2010-06-21 2012-01-17 Avago Technologies Fiber Ip (Singapore) Pte. Ltd. Lens device having protective elements
US9081157B2 (en) * 2010-09-20 2015-07-14 Optics Co., Ltd. Apparatus for wavelength-division multiplexing and demultiplexing
US20140199019A1 (en) * 2010-11-25 2014-07-17 Fci Optical Engine
US9014519B2 (en) * 2011-10-14 2015-04-21 Hewlett-Packard Development Company, L.P. Optoelectronic interface
US8714838B2 (en) * 2012-06-15 2014-05-06 Unive Co., Ltd. Optical subassembly for passive alignment and method of aligning the same
US20150323748A1 (en) * 2013-01-31 2015-11-12 Ccs Technology, Inc. Method to manufacture an optoelectronic assembly
US9429711B2 (en) * 2014-03-26 2016-08-30 International Business Machines Corporation Optical device, optical connector assembly, and optical connecting method
US20160209596A1 (en) * 2015-01-21 2016-07-21 Fujitsu Limited Inter-lens adjusting method and photoelectric hybrid substrate

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10914901B2 (en) * 2017-10-17 2021-02-09 International Business Machines Corporation Lateral mounting of optoelectronic chips on organic substrate
US10754070B2 (en) 2018-12-05 2020-08-25 International Business Machines Corporation Microlens array assembling process
US10690867B1 (en) * 2019-02-12 2020-06-23 International Business Machines Corporation Optical device with adhesive connection of recess or side protrusion
US20220413228A1 (en) * 2021-06-24 2022-12-29 Corning Research & Development Corporation Lensed optical fiber connector with dust insensitive alignment features
US11768334B2 (en) * 2021-06-24 2023-09-26 Corning Research & Development Corporation Lensed optical fiber connector with dust insensitive alignment features
US20240369787A1 (en) * 2021-09-14 2024-11-07 Fujikura Ltd. Optical connection structure
US12216313B2 (en) 2022-02-04 2025-02-04 Avago Technologies International Sales Pte. Limited Silicon photonic edge coupled connector via collimation

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